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Message-ID: <20240724144325.3307148-22-vschneid@redhat.com>
Date: Wed, 24 Jul 2024 16:43:21 +0200
From: Valentin Schneider <vschneid@...hat.com>
To: rcu@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Frederic Weisbecker <frederic@...nel.org>,
"Paul E. McKenney" <paulmck@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Neeraj Upadhyay <quic_neeraju@...cinc.com>,
Joel Fernandes <joel@...lfernandes.org>,
Josh Triplett <josh@...htriplett.org>,
Boqun Feng <boqun.feng@...il.com>,
Steven Rostedt <rostedt@...dmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
Lai Jiangshan <jiangshanlai@...il.com>,
Zqiang <qiang.zhang1211@...il.com>
Subject: [PATCH v3 21/25] rcu: Rename dyntick_save_progress_counter() into rcu_watching_snap_save()
The context_tracking.state RCU_DYNTICKS subvariable has been renamed to
RCU_WATCHING, and the 'dynticks' prefix can be dropped without losing any
meaning.
Suggested-by: Frederic Weisbecker <frederic@...nel.org>
Signed-off-by: Valentin Schneider <vschneid@...hat.com>
---
.../RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg | 2 +-
.../RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg | 2 +-
Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg | 2 +-
.../RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg | 2 +-
kernel/rcu/tree.c | 8 ++++----
5 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
index 423df00c4df9d..13956baf748ad 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg
@@ -528,7 +528,7 @@
font-style="normal"
y="-8652.5312"
x="2466.7822"
- xml:space="preserve">dyntick_save_progress_counter()</text>
+ xml:space="preserve">rcu_watching_snap_save()</text>
<text
style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier"
id="text202-7-2-7-2-0"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
index d82a77d03d8cc..9de55fbf5be49 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg
@@ -844,7 +844,7 @@
font-style="normal"
y="1547.8876"
x="4417.6396"
- xml:space="preserve">dyntick_save_progress_counter()</text>
+ xml:space="preserve">rcu_watching_snap_save()</text>
<g
style="fill:none;stroke-width:0.025in"
transform="translate(6501.9719,-10685.904)"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
index 53e0dc2a2c793..286a098b9c42f 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg
@@ -2974,7 +2974,7 @@
font-style="normal"
y="38114.047"
x="-334.33856"
- xml:space="preserve">dyntick_save_progress_counter()</text>
+ xml:space="preserve">rcu_watching_snap_save()</text>
<g
style="fill:none;stroke-width:0.025in"
transform="translate(1749.9916,25880.249)"
diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
index 4fa7506082bfe..bab69a15c9c22 100644
--- a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
+++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg
@@ -516,7 +516,7 @@
font-style="normal"
y="-8652.5312"
x="2466.7822"
- xml:space="preserve">dyntick_save_progress_counter()</text>
+ xml:space="preserve">rcu_watching_snap_save()</text>
<text
style="font-size:192px;font-style:normal;font-weight:bold;text-anchor:start;fill:#000000;stroke-width:0.025in;font-family:Courier"
id="text202-7-2-7-2-0"
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index e1dd424f8a4c0..e43d4e1ac4e18 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -768,11 +768,11 @@ static void rcu_gpnum_ovf(struct rcu_node *rnp, struct rcu_data *rdp)
}
/*
- * Snapshot the specified CPU's dynticks counter so that we can later
+ * Snapshot the specified CPU's RCU_WATCHING counter so that we can later
* credit them with an implicit quiescent state. Return 1 if this CPU
* is in dynticks idle mode, which is an extended quiescent state.
*/
-static int dyntick_save_progress_counter(struct rcu_data *rdp)
+static int rcu_watching_snap_save(struct rcu_data *rdp)
{
/*
* Full ordering against accesses prior current GP and also against
@@ -791,7 +791,7 @@ static int dyntick_save_progress_counter(struct rcu_data *rdp)
/*
* Returns positive if the specified CPU has passed through a quiescent state
* by virtue of being in or having passed through an dynticks idle state since
- * the last call to dyntick_save_progress_counter() for this same CPU, or by
+ * the last call to rcu_watching_snap_save() for this same CPU, or by
* virtue of having been offline.
*
* Returns negative if the specified CPU needs a force resched.
@@ -1984,7 +1984,7 @@ static void rcu_gp_fqs(bool first_time)
if (first_time) {
/* Collect dyntick-idle snapshots. */
- force_qs_rnp(dyntick_save_progress_counter);
+ force_qs_rnp(rcu_watching_snap_save);
} else {
/* Handle dyntick-idle and offline CPUs. */
force_qs_rnp(rcu_implicit_dynticks_qs);
--
2.43.0
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